tex45acp mentioned having a P245 he wishes he'd kept. It's worth noting in this P220 discussion that the P245 is nothing more than a "chopped" P220. The barrel/slide length is 3.9" (just like the new P220 Carry) but the standard grip or butt is about a 1/2" shorter. Standard magazine is 6 rounds but you can get Sig factory 8 round mags that also extend the butt/grip to full length.
This gun is no longer in production but many NIB guns remain on the shelves around the country. (I got mine with Siglite sights for $620 OTD...but without the Ilaflon finish). The P245 slide width (like the P220) is about the same as the slide on a 1911-perhaps just a smidge wider. (Remember, this is a single stack gun). Unloaded weight (with mag) is about 30 ozs.
I've had mine for several months now and I've become a huge fan. In terms of accuracy, it compares very favorably with my series "1" Kimber Custom Compact (< 2.5" five shot groups off a bench at 25 yards) but it weighs a bit less.
Of course, the new P220 Carry looks pretty hard to resist...Guess you lays down your $ and you makes your choice!